solinst fracture network characteristics fracture systems down-hole accoustic imaging optical televiewer imaging mean fracture spacing fracture porosity image
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solinst fracture network characteristics fracture systems down-hole accoustic imaging optical televiewer imaging mean fracture spacing fracture porosity image

Assessing the transport and fate of MTBE
amended petroleum hydrocarbons in the UK Chalk aquifer

G P Wealthall, S F Thornton and D N Lerner
Groundwater Protection and Restoration Group, University of Sheffield, UK
www.sheffield.ac.uk/gprg

solinst fracture network characteristics fracture systems down-hole accoustic imaging optical televiewer imaging mean fracture spacing fracture porosity image
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solinst fracture network characteristics fracture systems down-hole accoustic imaging optical televiewer imaging mean fracture spacing fracture porosity image
solinst fracture network characteristics fracture systems down-hole accoustic imaging optical televiewer imaging mean fracture spacing fracture porosity image

| 1. Intoduction | 2. Site Characteristics | 3. The Chalk Aquifer | 4. Fracture Network Characteristics |
| 5. Hydrogeology | Source Term | 6. Dissolved Phase Plume | 7. Conclusions | Full Paper |

solinst fracture network characteristics fracture systems down-hole accoustic imaging optical televiewer imaging mean fracture spacing fracture porosity image

solinst fracture network characteristics fracture systems down-hole accoustic imaging optical televiewer imaging mean fracture spacing fracture porosity image
The fracture system was characterised using combined core logging and down-hole acoustic and optical televiewer imaging.
• Bedding-parallel fractures with a dominant ENE-WSW strike and dip of 2-29&Mac251; to the SSE and a subordinate bedding-parallel fracture set with E-W strike and N dip of 10-30&Mac251;
• High-angled fractures include sets with a ENE-WSW or E-W trend and NNW dip of 30 to 80&Mac251;, and sets with a NW-SE trend and NE dip of 35-75&Mac251;
• Mean fracture spacing for combined bedding-parallel and high-angled fractures is 0.23 m
• Fracture porosity is estimated as 1.1% and is similar to estimates from other studies
solinst fracture network characteristics fracture systems down-hole accoustic imaging optical televiewer imaging mean fracture spacing fracture porosity image
solinst fracture network characteristics fracture systems down-hole accoustic imaging optical televiewer imaging mean fracture spacing fracture porosity image
solinst fracture network characteristics fracture systems down-hole accoustic imaging optical televiewer imaging mean fracture spacing fracture porosity image
.